GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Why You Shouldnt Mix GHK Cu with AHA, BHA, or Retinol, If youre using a GHK Cu (Copper Peptide) in your skincare routine, layering it with strong actives like AHA, BHA, or retinol may actually Blue Me Away: Skin Biology 7% GHK Cu Accelerant Review BeautyandtheCat's Beauty Blog